HYBRID ACTUATOR FOR DRIVING ZOOM
According to the present invention, a hybrid zoom driving actuator comprises: a first carrier on which a first lens is mounted; a second carrier which is disposed above or below the first carrier with respect to an optical-axis direction and on which a second lens is mounted; a housing in which the...
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Sprache: | eng ; kor |
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Zusammenfassung: | According to the present invention, a hybrid zoom driving actuator comprises: a first carrier on which a first lens is mounted; a second carrier which is disposed above or below the first carrier with respect to an optical-axis direction and on which a second lens is mounted; a housing in which the first and second carriers are accommodated; a first drive unit which moves the first carrier in the optical-axis direction; a drive magnet which is mounted on the second carrier; a drive coil which faces the drive magnet and provides driving force to move the second carrier in the optical-axis direction; a Hall sensor which senses a position of the second carrier; and a first circuit board on which the drive coil and the Hall sensor are mounted. Therefore, it is possible to sufficiently secure an independent movement range of each lens (lens assembly) mounted on each carrier.
본 발명에 의한 하이브리드 줌 구동 액추에이터는 제1렌즈가 탑재되는 제1캐리어; 광축 방향을 기준으로 상기 제1캐리어의 상부 또는 하부에 위치하며 제2렌즈가 탑재되는 제2캐리어; 상기 제1 및 제2캐리어를 수용하는 하우징; 상기 제1캐리어를 광축 방향으로 이동시키는 제1구동부; 상기 제2캐리어에 탑재되는 구동마그네트; 상기 구동마그네트와 대면하며 제2캐리어가 광축 방향으로 이동하도록 구동력을 제공하는 구동코일; 상기 제2캐리어의 위치를 감지하는 홀센서; 및 상기 구동코일과 홀센서가 실장되는 제1회로기판을 포함하는 것을 특징으로 한다. |
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